🇦🇷 Mar del Plata vs Rio de Janeiro 🇧🇷
Mar del Plata, Argentina vs Rio de Janeiro, Brazil — a side-by-side climate comparison to help you pick. Rio de Janeiro is the warmer of the two — about 8 degrees warmer on average across the year. Mar del Plata is drier, with roughly 31 fewer rainy days a year.
Climate at a glance
| 🇦🇷 Mar del Plata | 🇧🇷 Rio de Janeiro | |
|---|---|---|
| Avg annual high | 19°C | 27°C |
| Hottest month | January (26°C) | January (30°C) |
| Coldest month | July (6°C low) | July (18°C low) |
| Rainy days / year | 99 | 130 |
| Snow | Rare | Rare |
| Best months to visit | March, November, December | June, July, August |
🇦🇷 Mar del Plata
Best around March, November, December. Hottest in January (26°C), coldest lows in July (6°C).
🇧🇷 Rio de Janeiro
Best around June, July, August. Hottest in January (30°C), coldest lows in July (18°C).
Frequently asked questions
Is Mar del Plata or Rio de Janeiro warmer?
Rio de Janeiro is warmer overall, averaging about 8 degrees higher across the year.
Which is rainier, Mar del Plata or Rio de Janeiro?
Rio de Janeiro is rainier — Mar del Plata sees about 31 fewer rainy days per year.
When is the best time to visit Mar del Plata vs Rio de Janeiro?
Mar del Plata is best around March, November, December; Rio de Janeiro is best around June, July, August.